Chávez, V. M. C. ., A. L. G. . Guadalupe, and J. R. D. . Aguila. “Analysis Of The Economic Impact Of Organic Certification Of Coffee (Coffea Arabica) In The Agricultural Cooperative ‘Alta Montaña’ At Rodríguez De Mendoza Province In The Region Of Amazonas-Peru”. Social Science Learning Education Journal, vol. 5, no. 07, July 2020, pp. 270-8, https://sslej.in/index.php/sslej/article/view/3431.